始鼠科

（学名：Eomyidae）为啮齿目的一个已滅絕的科，生存於北美洲的始新世中期至中新世晚期和歐亞大陸的始新世晚期至更新世中期。

下级分类

本科包括以下属：
 Aguafriamys Wilson & Runckel, 1991
 Apeomyoides Smith, Cifelli & Czaplewski, 2006
 Apeomys Fahlbusch, 1968
 Arikareeomys Korth, 1992
 亚洲始鼠属 Asianeomys Wu, Y.e.Meng & Ni, 2006
 Aulolithomys Black, 1965
 Centimanomys Galbreath, 1955
 Comancheomys Dalquest, 1983
 Cristadjidaumo Korth & Eaton, 2004
 Cupressimus Storer, 1978
 Eomyidarum Schaub & Hürzeler, 1949
 Eomyodon Engesser, 1987
 Eomyops Engesser, 1979
 始鼠属 Eomys Schlosser, 1884
 Estramomys Janossy, 1969
 Heteroeomys Qiu, 2006
 日本始鼠屬 Japaneomys Kimura et al, 2019
 Kansasimys Wood, 1936
 Keramidomys Hartenberger, 1967
 Leptodontomys Shotwell, 1956
 Ligerimys Stehlin & Schaub, 1951
 Litoyoderimys Emry & Korth, 1993
 Megapeomys Fejfar, Rummel & Tomida, 1998
 Metadjidaumo Setoguchi, 1978
 Metanoiamys Chiment & Korth, 1996
 Meteomys Kretzoi, 1952
 Montanamus Ostrander, 1983
 Namatomys Black, 1965
 Neoadjidaumo Korth, 2008
 Omboomys Maridet et al., 2015
 Orelladjidaumo Korth, 1989
 Paradjidaumo Burke, 1934
 Paranamatomys Korth, 1992
 五尖始鼠属 Pentabuneomys Engesser, 1990
 Plesieomys Qiu, 2006
 Protadjidaumo Burke, 1934
 Pseudadjidaumo Lindsay, 1972
 Pseudotheridomys Schlosser, 1926
 Rhodanomys Depéret, 1902
 Ritteneria Stehlin & Schaub, 1951
 Ronquillomys Jacobs, 1977
 Symplokeomys Emry, Wang, Tjutkova & Lucas, 1997
 Viejadjidaumo Wood, 1974
 Yoderimys Wood, 1955
 Zaisaneomys Shevyreva, 1993
 Zemiodontomys Emry & Korth, 1993
 Zetamys L.D.Martin, 1974
 Zophoapeomys Korth, 2007

参考文献

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歐洲史前哺乳動物
亞洲史前哺乳動物
北美洲史前哺乳動物